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Finding the Fourth Proportional to 112,350.20, 168,029.58 and 99,957.20

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Solution

The fourth proportional to 112,350.20, 168,029.58 and 99,957.20 is: 149,494.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,350.20 : 168,029.58 = 99,957.20 : x
  2. Step 2: Convert to fraction form
    112,350.20/168,029.58 = 99,957.20/x
  3. Step 3: Cross multiply
    112,350.20x = 168,029.58 × 99,957.20
  4. Step 4: Simplify right side
    112,350.20x = 16,795,766,333.98
  5. Step 5: Solve for x
    x = 16,795,766,333.98/112,350.20
  6. Step 6: Final answer
    x = 149,494.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.